Finding the Fourth Proportional to 23,109.02, 31,890.42 and 12,498.63

Step by Step Solution

1. Step 1: Write the proportion equation
   23,109.02 : 31,890.42 = 12,498.63 : x
2. Step 2: Convert to fraction form
   23,109.02/31,890.42 = 12,498.63/x
3. Step 3: Cross multiply
   23,109.02x = 31,890.42 × 12,498.63
4. Step 4: Simplify right side
   23,109.02x = 398,586,560.12
5. Step 5: Solve for x
   x = 398,586,560.12/23,109.02
6. Step 6: Final answer
   x = 17,248.09